In Florida media avail, the Arizona Senator suggests Obama’s “Fox News Sunday” comments are a bit of a game changer.

Tough response from the Obama campaign: “John McCain has broken his word to the American people and rendered hollow his promise of a respectful campaign.” Full response.

McCain also hits Obama for not backing his plan to suspend gas taxes this summer. More excerpts here.

Plus: Responding to Sunday NY Times story, candidate also defends low-cost use of his wife’s corporate jet, calling it “perfectly legal and appropriate.”